CN100379086C

CN100379086C - Spring clamping device of elastic clamp

Info

Publication number: CN100379086C
Application number: CNB031481299A
Authority: CN
Inventors: J·费耶·霍曼
Original assignee: Phoenix Electric Manufacturing Co
Current assignee: Phoenix Electric Manufacturing Co
Priority date: 2002-07-17
Filing date: 2003-07-01
Publication date: 2008-04-02
Anticipated expiration: 2023-07-01
Also published as: US6945811B2; DE10232256B4; DE10232256A1; US20040014353A1; ITMI20031461A1; CN1476125A

Abstract

A clamping spring device for an elastic clamp for attaching at least one electrical conductor includes a support and a clamping leg at an end of a spring leg. The support includes a freestanding edge. The clamping leg projects toward the support at an acute angle so as to form a receiving space between the clamping leg and the support. The receiving space narrows in a conductor insertion direction from a conductor insertion side toward a clamping point and is configured to receive the at least one electrical conductor inserted in a lengthwise direction. The clamping leg includes a clamping edge for clamping the electrical conductor between the clamping edge and the support at the clamping point. In the clamping position, the clamping leg is offset from the freestanding edge so that, when clamped, the at least one electrical conductor is bent around the freestanding edge, providing an interlocking effect.

Description

The fixture of the spring of elastic clip

Technical field

The present invention relates to a kind of fixture of the spring.

Background technology

In German utility model specification 299 15 512 U1, known elastic clip with this fixture of the spring.Provide the interlocking of the clip conductor of having quoted to be used to prevent that conductor from not inadvertently extracting out from fixture of the spring and/or from elastic clip.In known devices, realized the interlocking of nipped conductor fully, from the conductor direction of insertion, the clamp arm on the spring arm is relevant with support with acute angle.By this way, under the situation to the tractive effort of this conductor opposing conductor direction of insertion, the clamped edge that contacts on the clamp arm of this conductor more firmly is pressed on this conductor, and this will produce the effect of interlocking.

In known fixture of the spring, the clamp arm on the spring arm relative with support is pressed in by on the folder conductor, and this support comprises smooth surface continuously.Therefore when being pressed on this surface by the folder conductor, this is pressed from both sides conductor can not stand distortion, prevents from fully to extract out by fixing this conductor on the clamped edge that conductor is interlocked in clamp arm thus.At first for the conductor of the braiding that comprises many thin wires, prevent that in known fixture of the spring the fail safe that conductor is extracted out from being inadequate, if this is because can be pulled out from the rightabout that conductor inserts by the clamped edge clamping and the conductor of clamp arm comprising not every lead, can pull out single lead so.

Summary of the invention

The present invention is based on the purpose that a kind of fixture of the spring in the type that begins to quote is provided, and has wherein improved the fail safe that prevents from not inadvertently to extract out conductor.

Achieve this end the fixture of the spring that is used for above-described the type by the present invention.

Outwardly-bent this conductor of conductor direction of insertion is necessary for the present invention.According to " bending " of the present invention and do not mean that this conductor just in time is positioned on the profile of support separate edge or is positioned on the clamped edge of clamp arm.But, bending according to the present invention should be appreciated that and is meant when the clamped edge at the clamping point clamp arm contacts it, this conductor is through by bending, otherwise conductor deflection streamlined process angulation, and the conductor that produces by this way distortion provides and prevents the added security of extracting out.Because this conductor is around the clamped edge bending of independent rack edge and clamp arm, conductor metal is resisted recurvate resistance and is produced by the interlocking of folder conductor.Should be noted that when the clamp arm that promotes support by servicing unit about this point to be released when bouncing back into it and clamping the position that the conductor that is inserted into fixture of the spring is just clamped and be crooked.

Description of drawings

Fig. 1 be illustrated in the elastic clip that has support among first embodiment fixture of the spring clamping point signal, partial cross section figure;

Fig. 2 represents to have in a second embodiment the schematic diagram corresponding to Fig. 1 of clamping point of the fixture of the spring of support;

The partial cross section schematic diagram of the top view of the clamping point shown in Fig. 3 presentation graphs 2;

Fig. 4 represents the perspective diagram of the clamping device in the specific embodiment shown in Fig. 2 and 3 with the form of box-shaped spring;

Fig. 5 represents the perspective back view of box-shaped spring shown in Figure 4; And

Fig. 6 represents the front perspective view with the box-shaped spring that inserts push rod shown in the Figure 4 and 5.

Embodiment

To the present invention be described in further detail based on the accompanying drawing of exemplary embodiment below.

Fig. 1 at length represents support 1, has settled spring arm 2 in the side clamping side of support.Spring arm 2 is supported in the relevant elastic clip by rights, so a free end of spring arm may be clipped on the support 1 with the form of spring leaf.Spring arm 2 has clamp arm 3, and this clamp arm 3 has clamped edge 4 at its free end, and this free end points to support 1 and stressed towards the direction of support 1 under the elastic force effect of spring arm 2.

Clamp arm 3 on spring arm 2, is realized with plate shape in the zone with respect to clamp arm 3 towards support 1 motion at least with acute angle.By this way, form the attaching space 5 that narrows down towards clamping point between support 1 and clamp arm 3, a rod element (not shown in figure 1) can stretch into wherein so that rise the clamp arm 3 that spring is housed from support 1.This will be used to insert electric conductor 6, and this electric conductor is that crooked easily many leads weave.After by described rod element retracting spring arm 2 and/or clamp arm 3, owing to, be fixed on clamping point at the longitudinal direction insertion support 1 of conductor and the conductor 6 between the clamp arm 3 in clamped edge 4 and support 1 angulation and friction.

When initial linearly extended conductor 6 was clamped, this conductor was in the clamping point bending, and this will produce the permanent deformation of conductor at clamping point.In the front and back of clamping point, conductor 6 can extend further in foregoing original rectilinear direction, determines that conductor 6 is around bar deflection.This bar is to be formed by the separate edge on the support 17, and the clamped edge 4 on its similar clamp arm 3 points to the direction of extracting out with respect to conductor.In addition, the edge on another flat surfaces side of support 1 is outstanding towards clamp arm 3.See that in the conductor direction of insertion separate edge 7 on the support 1 and the clamped edge 4 on the clamp arm 3 depart from each other.See in conductor 6 direction of insertion, clamped edge 4 on the clamp arm 3 is positioned at separate edge 7 back of support 1, thus conductor 6 first angle that departs from its original direction appear at the separate edge 7 of support 1 and conductor 6 relative direction further deflection appear on the clamped edge 4 of clamp arm 3.By this way, pressed from both sides conductor 6 to bend to a shape, as replenishing of friction lock is provided, it is adaptive to produce shape, and this is based on the remaining rigidity of the conductor metal that still exists, and does not consider the bendability of conductor.

In exemplary embodiment shown in Figure 1, separate edge 7 is formed by the tongue 8 that freely cuts at support 1.In order to form the edges of giving prominence to towards clamp arm 37 at tongue 8 ends, tongue 8 is pressed in outside the plane of support 1 in the direction towards spring arm 2 and/or clamp arm 3 simultaneously lightly.

In exemplary embodiment shown in Figure 2, the separate edge 7 of support 1 is formed by the edge in hole 9, and it is arranged as the through hole in the support 1.Also in the present example, edge 7 points to the direction of leaving the conductor inserting side, so that produce the interlocking of conductor 6, this edge 7 is around the conductor bending.See that in the conductor direction of insertion clamped edge 4 on the clamp arm 3 of spring arm 2 approaches the height in the middle of the hole 9, be implemented in three times of deflections of the conductor 6 that extends on the hole 9 by it.Produce first deflection at the bore edges that forms separate edge 7,, and, therefore also just form the edge of deflection conductor 6 in bore edges 10 formation the 3rd deflection that is positioned at respect to edge 7 in clamped edge 4 formation second deflection of clamp arm 3.From other direction, because in the power of the spring arm 2 of clamped position, conductor 6 is bent in the hole 9 by the clamped edge 4 of clamp arm 3.Therefore, in order to form the purpose of suitable interlocking, form second angle on the clamped edge 4 forming first angle on the edge 7 at clamp arm 3.

Fig. 3 is illustrated in clamp arm 3 sides and has breach 11 towards the clamped edge 4 of support 1, forms around the concave surface of this breach by clamped edge 4.When clamped edge 4 contact it the time, the conductor 6 that this shape allows to comprise many leads is tied into a branch of, therefore avoids conductor separately.For this purpose, breach 11 also can have another kind of shape, and this shape realizes with V-arrangement or trapezoidal form.

Fig. 4, the box-shaped spring 12 of 5 and 6 expression elastic clip, this spring 12 is installed two fixture of the spring of the above-mentioned type in principle.The box-shaped spring has antetheca 13 and rear wall 14, and the first type surface of this spring is positioned on the plane parallel to each other.The inside of antetheca 13 forms the support 1 of fixture of the spring and has two through holes 9, and the edge of through hole 9 forms identifiable

clamped edge

7 and 10 among Fig. 5.

Two spring arms 2 of each fixture of the spring are that the rear wall 14 from box-shaped spring 12 freely cuts, and it is made of metal.Clamp arm 3 at its two ends is angled towards the antetheca 13 of box-shaped spring 12.

Clearly the clamped edge 4 of clamp arm 3 remains on the height of the through hole 9 in the antetheca 13 of box-shaped spring 12 on the spring arm 2.As appreciable among Fig. 5, the clamp arm 3 of spring arm 2 of expression is pressed in the separate edge 7 that the edge by associated orifices 9 forms on the right here, and does not clamp conductor.For crooked easily conductor 6 can be inserted between the clamped edge 4 and support 1 of the clamp arm 3 in 9 zones, hole, clamp arm 3 is raised and leaves support 1, as has been described.Shown in Fig. 6, movably putter component 15 is used for this purpose in box-shaped spring 12.In the inner, putter component 15 has rod element 16, when push control rod parts 15 and therefore with clamp arm 3 when support 1 is removed, this rod element is similar equally stressed at support 1 and spring arm 2 and/or the voussoir between the clamp arm on the spring arm 3.When discharging, because the elastic force of spring 2, the putter component 15 with its rod element 16 automatically is moved back into its starting position, therefore is inserted in conductor in the adapted space 5 between support 1 and the clamp arm 3 mode of stating of chatting face to face more than 6 and is clamped.

In Fig. 6, be illustrated in the clamp arm 3 on the right side in the position that support 1 is left in its lifting just to illustration purpose, but putter component 15 is pressed into position and not shown at it.

Claims

1. the fixture of the spring of an elastic clip, be used for the conductor (6) of the flexibility of at least one braiding is fixed on the reception space (5) that is assigned to it, wherein this conductor (6) can insert and be clamped between spring arm (2) the terminal lip-deep clamped edge of clamp arm (3) (4) and a support (1) at its longitudinal direction, this clamp arm (3) points to this support (1) with acute angle, make this reception space (5) between this clamp arm (3) and this support (1) narrow down towards clamping point from the conductor inserting side, and in the zone in this reception space (5), also provide by the locking of folder conductor (6), it is characterized in that:

This support (1) has the separate edge (7) of placing towards this clamp arm (3) in its side, from with respect to this conductor direction of insertion, this support is placed on the clamped position of the certain distance of the clamped edge (4) of this clamp arm (3) that leaves this conductor of contact (6), so that clamped conductor (6) is around this separate edge (7) bending of this support (1).

2. according to the fixture of the spring of claim 1, it is characterized in that:

This separate edge (7) on this support (1) is outstanding towards the direction of this clamp arm (3).

3. according to the fixture of the spring of claim 2, it is characterized in that:

This separate edge (7) is to form and be located on the free end of this tongue by the tongue (8) that is positioned on the support (1), and this tongue is that the wall pressure from support goes out and correspondingly freely cut to form.

4. according to the fixture of the spring of claim 1 or 2, it is characterized in that:

This separate edge (7) is that the edge by the hole that is arranged in this support (1) (9) forms.

5. according to the fixture of the spring of claim 4, it is characterized in that:

In this clamped position, from this conductor direction of insertion, this clamped edge (4) of this clamp arm (3) is that the edge (10) in this hole relative with this separate edge (7) also forms the separate edge that makes the further deflection of this conductor (6) on the height that is positioned in the middle of this hole (9) of this support (1) and on this direction.

6. according to the fixture of the spring of claim 4 or 5, it is characterized in that:

Realize as the through hole in this support (1) in this hole (9).

7. according to the fixture of the spring of one of claim 1-6, it is characterized in that:

The two or more spring arms (2) placed that are adjacent to each other are settled with respect to shared support (1), and each spring arm (2) has clamp arm (3) and clamped edge (4), and equipment has the clamping point of the respective numbers of this separate edge (7) on support.

8. according to the fixture of the spring of claim 7, it is characterized in that:,

For the two or more clamp arms (3) that are placed on this spring arm (2), go up the shared separate edge (7) of equipment suitable length at this support (1).

9. according to the fixture of the spring of one of claim 1-8, it is characterized in that:

This support (1) is included in and is smooth metallic plate in the clamping region.

10. according to the fixture of the spring of claim 9, it is characterized in that:

This support (1) and this spring arm (2) with this clamp arm (3) are the parts of a box-shaped spring (12), this box-shaped spring has wall (13 at opposite side, 14), use is by the part of its free punching press, the first wall (13) of spring (12) forms this support (1), and its second wall (14) forms spring arm (2).

11. the fixture of the spring according to one of claim 1-10 is characterized in that:

This clamped edge (4) of this clamp arm (3) on this spring arm (2) has part around the breach (11) that is pressed from both sides conductor (6).